Improvement in fluting-machines



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'Letters Patent No. 84799, dated December 8, 1868.

IMPRVEMENT 1N merma-MACHINES.

The Schedule referred to in these Letters Patent and making part of the same.

To all whom fit may concern:

' Be it'known that I, WILLIAM D. Oonnrsrnn, of the city, county, and' State of New York, have invented a new and improved hinting-Machine; and I dohereby declare that the following is la full, clear, and exact description thereof, which will enable others skilled in the art to make and use the same, reference beinghad to the accompanying drawings, forming a part of this specification. l Figure ll represents asid'e elevation, partly in section, of my improved luting-machine.

Figure 2 is a vertical transverse section of the same. Similar letters of reference indicate corresponding parts. This invention relates to improvements in lutingmachines; and It consists in the arrangement of the screw operating the upper roller, the spring surrounding the same, the nut for regulating the tension of the spring, and

' the bent bar carrying the upper roller, and through which the operating-screw passes.

A, in the drawing, represents the main frame of the machine.

In the standards a b of the `same are the bea-rings of a hollow corrugated roller, B, on the axis of which a crank, c, or other equivalent device, is arranged.

The standard b extends upward above the roller B,

and has a horizontal arm, d, formed on it, the end of' ,zontal bar, D, and has a head, f, formed on it, so that it will suspend the said bar D, and will allow the same to slideilpward above the head ji From the ends of the barD project downward, arms g g, in which the bearings for the upper corrugated hollow roller E are. arranged.

of a crank, j, or other mechanism, the frame D, and, with it, the upper roller E, can be adj usted up or down at will, to regulate the distance between the two rollers, in accordance with vthe thickness of material to be tinted. Y

` Bilt, to' produce' a fer-tain degree of pressure, a spiral sprin g, t', is iitted around the screw, between the plate D and a nut, h, working on the screw, as is clearly shown. Thus, byadjusting the power of the spring i, the pressure of the upper roller will be regulated, and thesaid upper roller will also be made yielding to inequalities in the thickness of the material.

I am aware that various kinds of leversand other devices have been used for regulating the position of the upper roller of a iluting-machine. I am also aware that iluting-machines have been used in which the upper roller was hung in independent bearings, connected Itogether' by a flat spring,nand suspended from a bent arm, by means of the operating-screw passing through the centre of the spring; but this construction forms nov part of my invention, and I do not claim it. Moreover, the cutting away of the spring at its centre, for the passage of the screw, greatly weakens said spring, and therefore impairs the eiiiciency of the machine.

Having thus described my invention, p

lVliat I claim as new, and desire to secure by Letters Patent, is-

The described arrangement of the. operating-screw C, spring t, nut h, and bent bar D, as herein set forth, for the purpose specified.

WILLIAM D. GORRIS'IER.

Witnesses:

FRANK BLocKLnY, ALEX. F. ROBERTS.

It Willbe seen that, by turning the screw C,by means 

